There are 8 conditions to effective prayer

1 of 8 Come with Reverent Submission
Going a little farther, he fell with his face to the ground and prayed, “My Father, if it is possible, may this cup be taken from me. Yet not as I will, but as you will.”
He went away a second time and prayed, “My Father, if it is not possible for this cup to be taken away unless I drink it, may your will be done.”
Matthew 26: 39 & 42